Spectroscopy of dark soliton states in Bose-Einstein condensates

K. Bongs, S. Burger, D. Hellweg, M. Kottke, S. Dettmer, T. Rinkleff, L. Cacciapuoti, J. Arlt, K. Sengstock, W. Ertmer

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Experimental and numerical studies of the velocity field of dark solitons in Bose-Einstein condensates are presented. The formation process after phase imprinting as well as the propagation of the emerging soliton are investigated using spatially resolved Bragg spectroscopy of soliton states in Bose-Einstein condensates of 87Rb. A comparison of experimental data to results from numerical simulations of the Gross-Pitaevskii equation clearly identifies the flux underlying a dark soliton propagating in a Bose-Einstein condensate. The results allow further optimization of the phase imprinting method for creating collective excitations of Bose-Einstein condensates.

Original languageEnglish
Pages (from-to)S124-S130
JournalJournal of Optics B: Quantum and Semiclassical Optics
Issue number2
Publication statusPublished - Apr 2003


  • Bose-Einstein condensation
  • Coherent matter waves
  • Cold quantum gases
  • Nonlinear atom optics
  • Phase imprinting

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)


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